Madness Scene from the opera "Lucia di Lammermoor", the composer Gaetano Donizetti.
Lucci goes insane after the marriage under duress, she kills her husband and there in the room with the guests about this aria. Edgardo-from hostile family persuaded her to escape, but nothing happened. If anyone reading Bride of Lammermoor by Sir Walter Scott, then this is the story ..
Elvira's aria of madness"Qui la voce… vien, diletto"from Bellini's opera I PURITANI.
Amina's Aria "Ah, non Credea Mirarti" from Vincenzo Bellini's opera La Sonnambula.